Last week, Tropical Cyclone Tauktae hit northwest India, causing flooding and storm surges to the region, including Mumbai. Tauktae was the strongest storm to ever make landfall on the west coast of India, ultimately killing over 100 people.
Tropical Cyclone Yaas is intensifying over the Bay of Bengal and is already producing waves of up to 25 feet.
The cyclone “is likely to intensify further into a severe cyclonic storm over the next 6 hours and into a very severe cyclonic storm over the next 12 hours,” the Indian Meteorological Department (IMD) said.
The very hot water temperatures will fuel a rapid intensification the next day. Sea surface temperatures are estimated to reach 34 degrees Celsius (93 degrees Fahrenheit) in the northern Bay of Bengal.
Heavy rains could cause flash floods in northeast India, with widespread rains of 150 to 250 mm (6 to 10 inches) and isolated totals of over 250 mm likely. Some of the outer rain bands on the east side of the storm may cause flooding in parts of Bangladesh.
There will also be storm surges, with flooding of 2 to 4 meters (6.5 to 13 feet) expected along coastal sections of the Odisha and Kolkata regions, according to IMD.
Last year Cyclone Amphan made landfall near Kolkata with winds of 165 km / h (105 mph). Amphan was one of the most intense storms on record in the Indian Ocean. Although it weakened before reaching dry land, it still killed dozens across India and Bangladesh.
About 90 cyclones with winds of at least Category 1 hurricane force (around 120 km / h) hit northeast India or western Bangladesh.
Tropical cyclones can form year round in the northern Indian Ocean, but are particularly common in the spring before the monsoon.